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Fabrication of SiC-Al2O3 Nanoceramic Doped Organic Polymer For Flexible Nanoelectronics and Optical Applications 制备掺杂有机聚合物的 SiC-Al2O3 纳米陶瓷,用于柔性纳米电子学和光学应用
IF 2.8 3区 材料科学 Q3 CHEMISTRY, PHYSICAL Pub Date : 2024-10-16 DOI: 10.1007/s12633-024-03172-9
Ahmed Hashim, Hamed Ibrahim, Aseel Hadi

The current study goals to create of PS-SiC-Al2O3 multifunctional nanocomposites films as a promising nanomaterials to exploit in futuristic nanoelectronics and optical fields. By comparing with other nanocomposites films, the PS-SiC-Al2O3 films have high absorption for UV-radiation, flexible, low band gap, and inexpensive. The microstructure and optical characteristics of PS-SiC-Al2O3 films were investigated. The microstructure and morphological properties included FTIR and OM. The realized results indicated that the values absorbance for PS-SiC-Al2O3 films are high at NIR and UV spectrums. These results build the films of PS-SiC-Al2O3 are promising for NIR sensing, UV shielding and optoelectronics approaches. The increment ratio of PS absorbance is 30.9% for λ = 320 nm and SiC-Al2O3 content is 2.4 wt.%. The PS band gap is 3.8 eV and its reduced to 3.13 eV with increasing SiC-Al2O3 NPs content to 2.4 wt.%.. This performance leads to make the PS-SiC-Al2O3 films are welcomed in various optoelectronics and photonics fields. The optical factors: extinction coefficient; absorption coefficient; real and imaginary dielectric constants, refractive index; and optical conductivity of PS were enhanced with increasing SiC-Al2O3 NPs content; these results of lead to made the PS-SiC-Al2O3 films are suitable for optical fields. Finally, the achieved results confirmed that the PS-SiC-Al2O3 films could be as a key for promising nanoelectronics and optical fields.

本研究的目标是制作 PS-SiC-Al2O3 多功能纳米复合薄膜,将其作为一种有前途的纳米材料,用于未来的纳米电子学和光学领域。与其他纳米复合薄膜相比,PS-SiC-Al2O3 薄膜具有对紫外辐射的高吸收率、柔韧性、低带隙和价格低廉等特点。研究了 PS-SiC-Al2O3 薄膜的微观结构和光学特性。微观结构和形态特性包括傅立叶变换红外光谱(FTIR)和可见光光谱(OM)。研究结果表明,PS-SiC-Al2O3 薄膜在近红外和紫外光谱下的吸光度较高。这些结果表明,PS-SiC-Al2O3 薄膜有望用于近红外传感、紫外线屏蔽和光电子学方法。在 λ = 320 nm 和 SiC-Al2O3 含量为 2.4 wt.% 时,PS 吸光度的增量比为 30.9%。PS 带隙为 3.8 eV,随着 SiC-Al2O3 NPs 含量增至 2.4 wt.%,带隙降至 3.13 eV。这种性能使得 PS-SiC-Al2O3 薄膜在各种光电子和光电领域受到欢迎。随着 SiC-Al2O3 NPs 含量的增加,PS 的光学因子:消光系数、吸收系数、实介电常数、虚介电常数、折射率和光导率都得到了提高,这些结果使得 PS-SiC-Al2O3 薄膜适用于光学领域。最后,这些结果证实了 PS-SiC-Al2O3 薄膜是纳米电子学和光学领域的关键材料。
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引用次数: 0
Physical Properties and Mechanical Behavior of WSi2 at High Pressure 高压下 WSi2 的物理性质和机械行为
IF 2.8 3区 材料科学 Q3 CHEMISTRY, PHYSICAL Pub Date : 2024-10-16 DOI: 10.1007/s12633-024-03169-4
Lun Xiong, Mingquan Jiang, Xin He, Sheng Jiang

In this study, we studied the compression behavior of tungsten disilicide (WSi2) to 35.5 GPa using synchrotron radiation X-ray diffraction with silicon oil as the pressure transmission medium in a diamond anvil at room temperature. WSi2 did not undergo a structural phase transition within the pressure range studied. By fitting the volume data under different pressures, we obtained a bulk modulus of 289(3) GPa for WSi2. In addition, we studied the bulk modulus, electronic band structure, and density of states of WSi2 to the highest pressure of 40 GPa using density functional theory based on first-principles. The theoretical calculation shows that the bulk modulus of WSi2 is 242 GPa. The theoretical calculation results indicate that WSi2 exhibits both semimetallic and non-magnetic properties throughout the entire pressure range of 0–40 GPa.

在这项研究中,我们使用同步辐射 X 射线衍射技术,以硅油为压力传输介质,在室温下的金刚石砧中研究了二硅化钨(WSi2)在 35.5 GPa 压力下的压缩行为。在研究的压力范围内,WSi2 没有发生结构相变。通过拟合不同压力下的体积数据,我们得出 WSi2 的体积模量为 289(3) GPa。此外,我们还利用基于第一性原理的密度泛函理论研究了 WSi2 在最高压力 40 GPa 下的体积模量、电子带结构和状态密度。理论计算表明,WSi2 的体积模量为 242 GPa。理论计算结果表明,在 0-40 GPa 的整个压力范围内,WSi2 都表现出半金属性和非磁性。
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引用次数: 0
Nano Silica Catalyzed Synthesis, NMR Spectral and Photophysical Studies of Imidazole Derivatives 纳米二氧化硅催化咪唑衍生物的合成、核磁共振波谱和光物理研究
IF 2.8 3区 材料科学 Q3 CHEMISTRY, PHYSICAL Pub Date : 2024-10-15 DOI: 10.1007/s12633-024-03176-5
T. S. Rajasekar, N. Srinivasan, K. Jayamoorthy

This study explores the use of nano SiO2 as a catalyst in the synthesis of imidazole derivatives, demonstrating its superior catalytic efficiency compared to conventional catalysts. The high surface area of nano SiO2 significantly enhances reactant interactions, resulting in higher yields of imidazole products. Detailed NMR spectral analysis provided precise characterizations of the imidazole derivatives, revealing well-defined chemical shifts. The influence of solvent polarity on absorption and fluorescence spectra was investigated, showing that polar solvents induce pronounced bathochromic shifts by stabilizing the excited states through hydrogen bonding and dipole interactions. Quantum yield and emission kinetics analyses highlighted the role of non-radiative decay pathways in reducing fluorescence efficiency. Furthermore, DFT calculations of HOMO–LUMO energies elucidated how substituents affect electronic transitions and solvatochromic shifts. These findings underscore the effectiveness of nano SiO2 as a catalyst, illustrate the impact of solvent interactions on molecular behavior, and provide comprehensive insights into the electronic properties of imidazole derivatives, offering valuable implications for both research and practical applications.

本研究探讨了纳米二氧化硅作为催化剂在咪唑衍生物合成中的应用,证明其催化效率优于传统催化剂。纳米二氧化硅的高比表面积显著增强了反应物之间的相互作用,从而提高了咪唑产品的产量。详细的核磁共振光谱分析提供了咪唑衍生物的精确特征,揭示了明确的化学位移。研究还探讨了溶剂极性对吸收和荧光光谱的影响,结果表明极性溶剂通过氢键和偶极相互作用稳定激发态,从而引起明显的浴色偏移。量子产率和发射动力学分析强调了非辐射衰变途径在降低荧光效率方面的作用。此外,对 HOMO-LUMO 能量的 DFT 计算阐明了取代基如何影响电子跃迁和溶解变色。这些发现强调了纳米二氧化硅作为催化剂的有效性,说明了溶剂相互作用对分子行为的影响,并提供了对咪唑衍生物电子特性的全面见解,为研究和实际应用提供了宝贵的启示。
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引用次数: 0
SiNPs Decoration of Silicon Solar Cells and Size Analysis on the Downshifting Mechanism Response for the Enhancement of Solar Cells Efficiency 硅纳米粒子装饰硅太阳能电池及尺寸分析对提高太阳能电池效率的下移机制响应
IF 2.8 3区 材料科学 Q3 CHEMISTRY, PHYSICAL Pub Date : 2024-10-15 DOI: 10.1007/s12633-024-03165-8
A. Ramos-Carrazco, S. de la Cruz-Arreola, J. A. Martínez-Zamora, R. J. Borralles-Linarte, D. Berman-Mendoza, A. Vera-Marquina, J. B. Robles-Ocampo, H. J. Higuera-Valenzuela, R. Rangel

In this work, we present experimental and theoretical analysis of the absorbance of the SiNPs that exhibit an interesting behavior on light manipulation through the downshifting mechanism. Silicon nanoparticles (1 nm <radius < 3 nm) were synthesized using a green chemistry method, and characterized to determine its experimental absorbance region, size, crystallographic structure, and luminescence response. To evaluate the theoretical absorbance performance of SiNPs (radius < 3 nm), Mie’s theory was used to explore different scenarios considering: an isolated single silicon NP, an array of SiNPs with a specific size distribution and Si-SiO2 core-shell NPs. Also, a simple model to analyze the luminescence and their effect using a size distribution on the emission spectra are examined. Finally, the efficiency enhancement of Si solar cells using SiNPs as a downshifting material was explored. The presence of the nanoparticles on the device’s surface was revealed by scanning electron microscopy. The solar cell’s parameters, current-voltage characteristics, power-voltage curves were obtained. A current density of 24.2 mA/cm(^2), open-circuit voltage of 610 mV and a fill factor of 72% and an overall power conversion efficiency of 45% are reported. These results show that the controlled dosing of SiNPs in aqueous solution has a high potential to be applied as an antireflective coating complement to improve the efficiency of large-scale solar cells due to the simplicity of the method, low toxicity and easy distribution over large areas.

在这项工作中,我们对硅纳米粒子的吸光度进行了实验和理论分析,这些粒子通过下移机制在光操纵方面表现出有趣的行为。我们采用绿色化学方法合成了硅纳米粒子(1 nm <radius < 3 nm),并对其实验吸光区域、尺寸、晶体结构和发光响应进行了表征。为了评估 SiNPs(半径< 3 nm)的理论吸光性能,利用米氏理论探讨了不同的情况:孤立的单个硅 NPs、具有特定尺寸分布的 SiNPs 阵列以及 Si-SiO2 核壳 NPs。此外,还研究了一个简单的发光分析模型,以及尺寸分布对发射光谱的影响。最后,还探讨了使用 SiNPs 作为下移材料提高硅太阳能电池效率的问题。扫描电子显微镜揭示了器件表面纳米粒子的存在。获得了太阳能电池的参数、电流-电压特性和功率-电压曲线。电流密度为 24.2 mA/cm(^2/),开路电压为 610 mV,填充因子为 72%,总功率转换效率为 45%。这些结果表明,在水溶液中可控添加 SiNPs 具有方法简单、毒性低和易于大面积分布等优点,因此很有可能被用作抗反射涂层的补充材料,以提高大规模太阳能电池的效率。
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引用次数: 0
Examination of Potential of Fe-Si78, Fe-C78, Fe-B39P39, Fe-SiNT (9, 0), Fe-CNT (9, 0) and Fe-BPNT (9, 0) to Deliver the Chloroquine as Drug of Coronavirus Disease 研究 Fe-Si78、Fe-C78、Fe-B39P39、Fe-SiNT (9,0)、Fe-CNT (9, 0) 和 Fe-BPNT (9, 0) 释放氯喹作为冠状病毒药物的潜力
IF 2.8 3区 材料科学 Q3 CHEMISTRY, PHYSICAL Pub Date : 2024-10-14 DOI: 10.1007/s12633-024-03175-6
Junjuan Zhang, Xiangtao Yu

This work wants to examine the potential of Fe-Si78, Fe-C78, Fe-B39P39, Fe-doped NT (9, 0) for delivering the Chloroquine as COVID-19 drug by theoretical models. The ΔEadsorption, ΔHadsorption and ΔGadsorption values for adsorption of Chloroquine on surfaces of Fe-Si78, Fe-C78, Fe-B39P39, Fe-doped NT (9, 0) are calculated. The Fe adoption of structures can improve the thermodynamic stability of Si78, C78, B39P39, SiNT (9, 0), CNT (9, 0) and BPNT (9, 0). The ΔGadsorption of adsorption of Chloroquine on surfaces of Fe-Si78, Fe-C78, Fe-B39P39, Fe-doped NT (9, 0) are -2.94, -3.05, -3.19, -3.65, -3.78 and -3.87 eV, respectively. The Fe-BPNT (9, 0) and Fe-B39P39 have higher τ and q than Fe-Si78, Fe-C78, Fe-doped NT (9, 0). Finally, the Fe-BPNT (9, 0) and Fe-CNT (9, 0) have acceptable potential for delivering the Chloroquine as anti-Coronavirus drug and Fe-BPNT (9, 0) and Fe-CNT (9, 0) can propose as suitable materials for drug delivery.

本研究旨在通过理论模型研究 Fe-Si78、Fe-C78、Fe-B39P39、掺杂 Fe 的 NT (9, 0) 在输送作为 COVID-19 药物的氯喹方面的潜力。计算了氯喹在 Fe-Si78、Fe-C78、Fe-B39P39 和掺 Fe 的 NT (9, 0) 表面的吸附ΔEadsorption、ΔHadsorption 和 ΔGadsorption 值。采用 Fe 结构可以提高 Si78、C78、B39P39、SiNT (9,0)、CNT (9, 0) 和 BPNT (9, 0) 的热力学稳定性。Fe-Si78、Fe-C78、Fe-B39P39、掺Fe的NT(9,0)表面吸附氯喹的ΔGadsorption分别为-2.94、-3.05、-3.19、-3.65、-3.78和-3.87 eV。Fe-BPNT (9, 0) 和 Fe-B39P39 比 Fe-Si78、Fe-C78、Fe-掺杂的 NT (9, 0) 具有更高的τ 和 q。最后,Fe-BPNT (9, 0) 和 Fe-CNT (9, 0) 在输送抗冠状病毒药物氯喹方面具有可接受的潜力,Fe-BPNT (9, 0) 和 Fe-CNT (9, 0) 可作为合适的药物输送材料。
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引用次数: 0
Recent Progress in Silicon Quantum Dots Sensors: A Review 硅量子点传感器的最新进展:综述
IF 2.8 3区 材料科学 Q3 CHEMISTRY, PHYSICAL Pub Date : 2024-10-14 DOI: 10.1007/s12633-024-03170-x
S. Sreejith, J. Ajayan, J. M. Radhika, N. V. Uma Reddy, M. Manikandan, Jimsha K. Mathew

Recently, there has been a lot of interest in silicon quantum dots (Sil-QDts) because of their special opto-electronic properties. These qualities include broad absorption spectra, strong photo-bleaching stability, and size-tunable photoluminescence, which can range from visible to near-infrared depending on its size. Because of their high biocompatibility, low cytotoxicity, and vast surface modification capacity, these nanoparticles have the potential to be used in a wide range of biological and biomedical applications, including sensing, bio-imaging, and photodynamic therapy. This paper presents a thorough analysis of current developments using Sil-QDts in sensor technology. Various types of sensors that use Sil-QDts are examined in detail, such as metal ion sensors, biosensors, food quality sensors, and pesticide and pollution detectors. This paper also addresses prospective applications and future possibilities of Sil-QDt-based sensors.

最近,硅量子点(Sil-QDts)因其特殊的光电特性而备受关注。这些特性包括吸收光谱宽、光漂白稳定性强、光致发光大小可调,根据大小可从可见光到近红外。由于这些纳米粒子具有高生物相容性、低细胞毒性和巨大的表面修饰能力,因此有望广泛应用于生物和生物医学领域,包括传感、生物成像和光动力疗法。本文全面分析了目前在传感器技术中使用 Sil-QDts 的发展情况。本文详细分析了使用 Sil-QDts 的各类传感器,如金属离子传感器、生物传感器、食品质量传感器以及农药和污染检测器。本文还探讨了基于 Sil-QDt 的传感器的应用前景和未来可能性。
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引用次数: 0
Enhancing Water Deficit Stress Tolerance in Wheat: Synergistic Effects of Silicon Nanoparticles and Plant Growth-Promoting Bacteria 增强小麦对缺水胁迫的耐受性:纳米硅颗粒与植物生长促进细菌的协同效应
IF 2.8 3区 材料科学 Q3 CHEMISTRY, PHYSICAL Pub Date : 2024-10-14 DOI: 10.1007/s12633-024-03164-9
Faezeh Davoudi, Mahboobeh Jalali, Keyvan Valizadeh-Rad, Hassan Etesami

Water deficit stress significantly reduces grain yield in bread wheat, requiring improved tolerance in cultivars. Despite recent breeding advancements, enhancing tolerance remains crucial. Plant growth-promoting bacteria (PGPB) and silicon (Si) independently boost drought resistance through different mechanisms, but their combined effects are understudied. This research explored the combined impacts of silicon dioxide nanoparticles (SiO2 NPs) and native PGPB on wheat's morphophysiological and nutritional responses under water deficit stress. The study tested various SiO2 NPs concentrations (control, soil application of 100 and 200 mgkg−1, and foliar application of 200 mgkg−1) and PGPB strains (no bacterium, Pseudomonas fluorescens p-187, and Pseudomonas putida p-168). Results showed that SiO2 NPs significantly improved wheat tolerance to water stress, increasing shoot dry weight by 4.40 g/pot with 100 mgkg−1 SiO2NPs and Pseudomonas fluorescens p-187 compared to the control, and root dry weight by 1.05 g pot−1 with foliar application of 200 mgkg−1 SiO2 NPs and Pseudomonas putida p-168. SiO2 NPs and PGPB also boosted N, P, K, and Si concentrations in wheat shoots, reduced malondialdehyde content, and increased superoxide dismutase and glutathione peroxidase activities. The best performance was achieved with 200 mgkg−1 SiO2 NPs and Pseudomonas fluorescens p-187. The study confirms that combining SiO2 NPs sources with PGPB effectively enhances wheat's drought tolerance. This synergistic approach offers an environmentally sustainable strategy to bolster crop resilience against water deficit stress, ensuring better wheat yield in drought-prone conditions.

缺水胁迫会大大降低面包小麦的谷物产量,因此需要提高栽培品种的耐受性。尽管最近育种取得了进展,但提高耐受性仍然至关重要。植物生长促进菌(PGPB)和硅(Si)通过不同的机制独立地提高了抗旱性,但它们的综合效应还未得到充分研究。本研究探讨了二氧化硅纳米颗粒(SiO2 NPs)和本地 PGPB 在缺水胁迫下对小麦形态生理和营养响应的综合影响。该研究测试了不同浓度的 SiO2 NPs(对照、100 和 200 mgkg-1 的土壤施用以及 200 mgkg-1 的叶面施用)和 PGPB 菌株(无菌、荧光假单胞菌 p-187 和假单胞菌 p-168)。结果表明,SiO2 NPs 能显著提高小麦对水分胁迫的耐受性,与对照相比,叶面喷施 100 mgkg-1 SiO2NPs 和荧光假单胞菌 p-187 可使芽干重增加 4.40 克/盆,叶面喷施 200 mgkg-1 SiO2NPs 和腐生假单胞菌 p-168 可使根干重增加 1.05 克/盆。SiO2 NPs 和 PGPB 还能提高小麦芽中氮、磷、钾和硅的浓度,降低丙二醛含量,提高超氧化物歧化酶和谷胱甘肽过氧化物酶的活性。200 mgkg-1 二氧化硅氮氧化物和荧光假单胞菌 p-187 的效果最佳。该研究证实,将 SiO2 NPs 源与 PGPB 结合使用可有效提高小麦的抗旱性。这种协同增效方法提供了一种环境可持续战略,可增强作物对缺水胁迫的抗逆性,确保小麦在易旱条件下获得更高的产量。
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引用次数: 0
Determination of Zeolite NaA (LTA) Synthesis Parameters from Technogenic Silica Gel for Water Softening 从用于软化水的技术硅胶中确定沸石 NaA(LTA)的合成参数
IF 2.8 3区 材料科学 Q3 CHEMISTRY, PHYSICAL Pub Date : 2024-10-14 DOI: 10.1007/s12633-024-03177-4
Igor N. Pyagay, Yana A. Svakhina, Marina E. Titova, Victoria R. Dronova, Vladimir V. Miroshnichenko

Utilization of fluoride-containing waste from aluminium fluoride production is an important strategic issue. Here, we use technogenic silica gel containing about 30 wt. % of fluoride and aluminum for zeolite NaA (LTA) synthesis. The process consists of two steps: silica gel acid purification up to a silica content of 95 wt. % and hydrothermal synthesis. X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared (FTIR) spectroscopy were used for phase identification and synthesis conditions optimization. As a result, we determined that hydrothermal synthesis from aluminosilicate gel with molar ratios SiO2:Al2O3 = 1.8, Na2O:Al2O3 = 4.0, and H2O:SiO2 = 50 at 95 °C for 60 min with vigorous stirring yields zeolite NaA with Ca2+ and Mg2+ ion exchange capacities of 562.6 and 187.5 mEq/100 g respectively and water vapor capacity of 25.8 g/100 g. Thus, the developed process offers waste silica gel utilization and production of zeolite NaA, which is as good as commercial analogs.

Graphical Abstract

利用氟化铝生产过程中产生的含氟废料是一个重要的战略问题。在这里,我们使用含约 30% 氟和铝的技术硅胶来合成沸石 NaA (LTA)。该工艺包括两个步骤:硅胶酸提纯至二氧化硅含量达到 95 重量%,以及水热合成。我们使用 X 射线衍射 (XRD)、扫描电子显微镜 (SEM) 和傅立叶变换红外光谱 (FTIR) 进行相鉴别和合成条件优化。结果表明,以摩尔比为 SiO2:Al2O3 = 1.8、Na2O:Al2O3 = 4.0 和 H2O:SiO2 = 50 的硅酸铝凝胶为原料,在 95 ℃、剧烈搅拌 60 分钟的条件下进行水热合成,可得到 Ca2+ 和 Mg2+ 离子交换容量分别为 562.6 和 187.5 mE2 的沸石 NaA。因此,所开发的工艺可以利用废硅胶并生产出沸石 NaA,其性能不亚于商业同类产品。
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引用次数: 0
Shaping the Future: Innovations in Silicon Wafer Production and Finishing 塑造未来:硅晶片生产和精加工的创新
IF 2.8 3区 材料科学 Q3 CHEMISTRY, PHYSICAL Pub Date : 2024-10-12 DOI: 10.1007/s12633-024-03168-5
Shagun Kainth, Piyush Sharma, P.K. Diwan, O.P. Pandey

Silicon wafers are essential components in the production of various devices, including integrated circuits, microchips, and solar cells. The quality and characteristics of silicon wafers greatly influence the performance and reliability of these devices. Silicon wafers have been produced through processes like the Czochralski method, which involves growing a single crystal ingot of silicon and then slicing it into thin wafers. While effective, these methods have limitations in terms of scalability, cost, and uniformity. Recent advancements in silicon wafer production focus on improving efficiency, reducing costs, and enhancing quality. The innovations in silicon wafer production and finishing have significant implications for various industries, including electronics, telecommunications, automotive, and renewable energy. This article provides an overview of the production of high-purity silicon, a vital component in semiconductor device manufacturing. A comprehensive description related to the extraction of silicon from silica, the refinement of metallurgical grade silicon (MGS) to achieve high purity. Additionally, the article covers various processes involved in silicon wafer manufacturing, including cutting, shaping, polishing, and cleaning, and explores advancements in technology that could enhance wafer manufacturing capabilities.

硅晶片是生产集成电路、微芯片和太阳能电池等各种设备的重要部件。硅晶片的质量和特性在很大程度上影响着这些设备的性能和可靠性。硅晶片是通过 Czochralski 法等工艺生产出来的,这种方法是先培育出单晶硅锭,然后将其切成薄片。这些方法虽然有效,但在可扩展性、成本和均匀性方面存在局限性。硅晶片生产的最新进展主要集中在提高效率、降低成本和提高质量方面。硅晶片生产和精加工领域的创新对电子、电信、汽车和可再生能源等各行各业都有重大影响。本文概述了高纯度硅的生产过程,高纯度硅是半导体设备制造的重要组成部分。文章全面介绍了从二氧化硅中提取硅、精炼冶金级硅 (MGS) 以达到高纯度的过程。此外,文章还介绍了硅晶片制造过程中涉及的各种工艺,包括切割、成型、抛光和清洁,并探讨了可提高晶片制造能力的先进技术。
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引用次数: 0
Investigation of Impurities Distribution on the mc-Si Ingot Grown by the Silicon Nitride Coated Carbon Crucible: Numerical Simulation 氮化硅涂层碳坩埚生长的微晶硅锭上的杂质分布研究:数值模拟
IF 2.8 3区 材料科学 Q3 CHEMISTRY, PHYSICAL Pub Date : 2024-10-11 DOI: 10.1007/s12633-024-03171-w
P. Periyannan, P. Karuppasamy, N. Balamurugan, P. Ramasamy

The multi-crystalline silicon (mc-Si) ingot quality is mainly influenced by the generation of impurities and their diffusion. A transient global simulation helps to study the impurities distribution in the grown mc-Si ingot. In this work, crucible materials such as quartz and carbon are used to grow mc-Si ingots, and the impurities distribution of both silicon ingots are analyzed. Non-metallic impurities such as oxygen, and carbon are the major impurities formed in the silicon crystal during the directional solidification (DS) process. These impurities arise from the parts of the furnace and are segregated partly into the mc-Si ingot. The impurities such as oxygen and carbon were analyzed at the melt-crystal interface as well as in grown mc-Si ingots. Further, the gaseous impurities such as silicon monoxide and carbon monoxide are analyzed in the melt-free surface. The solar cell performance mainly depends on the quality of the silicon ingot. The mc-Si ingot grown by silicon nitride-coated carbon crucible gives better quality for photovoltaic industries.

多晶硅(mc-Si)铸锭的质量主要受杂质的产生及其扩散的影响。瞬态全局模拟有助于研究生长的微晶硅锭中的杂质分布。本文使用石英和碳等坩埚材料来生长微晶硅锭,并分析了两种硅锭的杂质分布。氧和碳等非金属杂质是定向凝固(DS)过程中硅晶体中形成的主要杂质。这些杂质来自熔炉的各个部分,并部分偏析到微晶硅锭中。对熔融-晶体界面以及生长的晶体硅锭中的氧和碳等杂质进行了分析。此外,还分析了无熔体表面的气态杂质,如一氧化硅和一氧化碳。太阳能电池的性能主要取决于硅锭的质量。通过氮化硅涂层碳坩埚生长的微晶硅锭质量更好,可用于光伏产业。
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引用次数: 0
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